Interrupt Response Time - Hitachi H8/3937 Series Hardware Manual

3.3.6

Interrupt Response Time

Table 3-4 shows the number of wait states after an interrupt request flag is set until the first
instruction of the interrupt handler is executed.
Table 3-4 Interrupt Wait States
Item
Waiting time for completion of executing instruction*
Saving of PC and CCR to stack
Vector fetch
Instruction fetch
Internal processing
Note: Not including EEPMOV instruction.
*
States Total
1 to 13 15 to 27
4
2
4
4
79